[grd777]

Originally Posted by Aus78Formula

Not sure this helps much for a '75 400, this is from a '77-79.

403 Firebird AC compressor loom idle solenoid by Aus78Formula, on Flickr

Likewise, here's similar era chev but they've jumpered the wire that goes to the blower motor onto same setup.

https://www.camarocentral.com/1973_1..._p/wir-265.htm

ok that is great i have one like this .the other one has a thermal limiter on it would that be for my 75